Just run in 3drad editor, simple instructions on screen
1. Click on terrain to set PATH origin
2. Click Q save waypoint
3. Repeat Click and Q until your path is complete
4. Hit Esc
5. Open MyPath.txt, copy & paste into a path object.
6. Place path object at first coordinate.
It saves a file called MyPath.txt in your 3dRad folder, just copy paste the contents into a path object.
Save _patheditor.3dr in your projects folder.
Have fun